Tank-sealing device



1 9- E. G. FRIEDMAN 1,741,104 TANK SEALING m-zvwn Filed Nov. 25, 1927 [may Z/F/eaman INVENTOR O wlTllEssww ATTORNEY Patented Dec. 24, 1929 1,741,104

UNITE D STATE S E -N :OiFFl CE EMERY G. FRIEDMAN, F -'IAMIPICO, MEXICO TANK-SEALING DEVICE Application filed November 25, 1927. Seria1No.235;690.

This invention relates to improvements in tom of annular gutters 17 also formed in the tanks adapted for storing gasoline and other bottom of the trough. 'These gutters are in combustible liquids, an object being to procommunication with thetrough through the vide means for protecting the contents of the medium of passages 18.

5 tanks from fire, and atthe same time permit The channel 15 is adapted to contain a ting the passage of air and gas into and from sealing element (preferably mercury) and in the tank, so as to prevent damage to the tanks the event of the mercury or other liquid sealdue to clogged breather passages or closed ing element overflowing the edges 16 into vents. either of the gutters 17, the liquid sealing Another object of the invent-ion is the proelement will return to the channel through vision of means of the above character which the passages 18. is adjustable to suit various conditions, and Extending downwardly from the canopy which is adapted to be used with diflerent 13 is a skirt 19. The lower edge of this skirt kinds of sealing elements. is emersed in the sealing element 20 and the 15 With the above and other objects in view, depth of this emersion is controlled by the 05 the invention further includes the following position of the canopy. For this purpose, the novel features and details of construction, to the canopy carries downwardly extending be hereinafter more fully described, illusthreaded rods 21 whose upper ends are setrated in the accompanying drawings and cured in place by means of lock nuts 22. The

pointed out in the appended claims. rods 21 threadedly engage lugs 23 which ex- '70 In the drawings tend inwardly from the neck or flange 11.

Figure 1 is a sectional view illustrating a By loosening the lock nuts 22, the rods 21 portion of the top of a storage tank with the may be rotated to adj ustably position the 5 invention applied. skirt 19 with respect to the sealing element 20 Figure 2 is a fragmentary sectional view so as to seal the tank and reduce danger of 7-5 on the line 22 of Figure 1. fire, yet permit of the passage of gas and air Figure 3 is a section on the line 33 of through the breather opening. Figure 2. If desired, a suitable packing may be sub- Referring to the drawings in detail wherestituted for the sealing element and the skirt in like characters of reference denote corre- 19 may be tightly embedded in this packing. 8O sponding parts, the reference character 10 inl/Vhile the trough and skirt are shown upon dicates a portion of the top of a storage tank the outside of the neck or flange 12, it is obwhich may be used for the storage of gasovious that they may be placed upon the inside line, oils and other inflammable materials. if desired. Extending upwardly from the top 10 is a The invention is susceptible of various .85 relatively long neck or flange 11, the passage changes in its form, proportions and minor through this neck or flange providing a details of construction and the right is herein breather opening 12 for the tank. reserved to make such changes as properly In order to protect this opening and yet fall within the scope of the appended claims. permit of the passage of gas and air, the in- Having described the invention what is vention provides a canopy 13 which is spaced claimed is above the opening 12 and which extends be- 1. In combination with a container having yond the periphery of the neck or flange for a breather opening surrounded by a flange,

an appreciable distance. Secured to the neck a trough extending around the flange below or flange 11 is an annular trough 14. This the opening, a channel extending around the trough is cross sectionally shaped as shown bottom of the trough and having its upper in Figure 1 so as to provide an annular chanedges above the bottom of said trough, a nel 15. The channel is preferably, though liquid within the channel, a canopy spaced not necessarily, V-shaped in cross section, above the breather opening, a skirt carried and its upper edges 16 extend above the botby the canopy and extending downwardly within the liquid, means to adjust the skirt within the channel, and passages providing communication between the channel and the remaining portion of the trough.

2. In combination with a container having a breather opening surrounded by a flange, a trough extending around the flange below the opening, a channel extending around the bottom of the trough and having itsupper edges above the bottom of said trough, a liquid within the channel, a canopy spaced above the breather opening, a skirt carried by the canopy and extending clownwardly within the liquid, means to adjust the skirt within the channel and means to return the liquid to the channel in the event of overflow of said liquid.

In testimony whereof I aflix my signature.

EMERY G. FRIEDMAN. 

